Steam-injector



J. DESMOND.

STEAM INJECTOR.

(Model.)

No. 303,366. Patented Aug. 12,1884.

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ATENT JOHN DESMOND, OF JACKSON, MICHIGAN, ASSIGNOR OF ONE-HALF TO URIAH MORTON WHITE, OF TOLEDO, OHIO.

STEAM- INJ ECTO R.

SPECIFICATION forming part of Letters Patent'No. 303,366, dated August 12, 1884.

Application filed December 4, 1883. (Model) To all whom it may concern.-

Be it known that 1, JOHN DESMOND, a citizen of the United States of America, residing at Jackson, in the county of Jackson and State of Michigan, have invented certain new and useful Improvements in Steam-Injectors, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to an improvement in steam-injectors; and it consists in the chamber A, cylindric valve-chamber B, steam-conduit O, chamber-tube a, nozzle 1), steam-valve D, steam-pipe E, having pipe-coupling E, connectingtube B, water-supply pipe F, pipe G, having pipe-coupling G, valve G, elbowjoint pipe H, injecting-valve K, compound lever K, and in the combination and arrangement of the parts, substantially as hereinafter more fully shown and described.

In the drawings, Figurel is a perspective. Fig. 2 is an elevation in section, and Figs. 3 and 4 are detail views.

I11 the construction of my steam-injector I cast integral with chamber A the steam-conduit 0, opening into the front part of chamber A at O, and into the chamber B at 0 thus connecting the front part of chamber A with the steam-valve D, and also cast integral with chamber A the steam-valve chamber D, having steanrpipe E secured thereto by means of pipe-coupling E, Chamber Ahas also cast integral therewith or rigidly secured therein tube a in wall a, and nozzle 1), opening at one end into valve-chamber B, and from thence curved and projected to nearly connect with the nozzle 1) of the connecting-tube B. The water-supply pipe F, opening into chamber A, is connected therewith by means of pipe-coup ling F and the outflow-pipe Gby means of pipecoupling G, thelatter pipe being provided wit-11 the outlet-valve G, which is closed during the process of injecting water into the boiler. The cylindric steam-valve chamber B is closed on one side by thescrew-cap D,having recess F", (see Fig. 4,) which recess furnishes in part the bearings of the valve-rod cl, having shou1- der (1, and is closed on its opposite side by the screwcap d having flange (Z and connects with steam-pipe E, havingpipecoupling E, The steam-valve D consists of valve-rod at, having cast integral therewith the circular disk 6, having recess 0, which disk is secured in the valve-chamber B by means of the szrew-cap d and the valve is adjustable in connection with the orifice 0", leading into cham ber B, and the orifice 0, opening into nozzle 1). The eonnectingtube B is provided with the flange g, and it, together with pipeeoupling g,.Fig. 1, forms a tight joint-connection with the elbow-pipejoint H, thuspreventing the possible ingress of atmospheric air. To the elbow-pipe joint His secured the valve K, which is opened and closed simultaneously with the steam-valve D by means of the compound lever K, thus admitting outflow of water into the boiler from chamber A at the moment of applying the steam.

The operation is as follows: The valve D is first adjusted by compound lever K to bring recess 0 of circular disk 6 in line with the orifice C of the steam-conduit G, whereupon water is elevated by action of the steam.

from supply-pipe F, and carried forward by it as it proceeds from sectionchamber M through tube a into a section, M, and there upon by moving the compound lever K the recess 6 is brought into line with the nozzle 1). The steam proceeding from the nozzle forces the water out through connecting-tube B" and through valve K into the boiler, the valve being opened simultaneously with the alignment of recess 6 with nozzle 1) by movement of the compound lever K, which is so arranged in connection with these valves as to perform both these'operations togetherby one and the same movement thereof. When a sufficient quantity of waterhas been injected into the boiler, the outlet-valve G is opened, and the surplus water contained in section 1 is thus permitted to flow therefrom through pipe G, thus preventing precipitation of water sediment in said section, and its ultimate injection into the boiler with water as supplied thereto.

Having described my invention, what I claim isl. A steam-injector operated by means of a compound lever for simultaneously opening and closing valves for ingress of steam and egress of water to the boiler, substantially as shown and described.

B, steam-valve D, injecting-valve K, supply- A,divided into scctionsM M, supply and outpipe F, emptying-pipe G, and compound 1elet Water-pipes, a steam-conduit, steam and ver K, substantially as shown, and for the water-valves, tube a, nozzle b, connectingi purpose described.

5 tube 13, and a compound lever for admission In testimony whereof I affix my signaturein I 5 of steam into chamber A and egress of Water presence of two witnesses. therefrom to the boiler simultaneously, sub- JOHN DESMOND. stantially as described.

3. The combination of chamber A, having [0 conduit 0, tube a, nozzle b, connecting-tube A steanrinjector, consisting of chamber Vitnesses:

JNo. G. MUNDY,

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